Method of manufacturing elastomer articles having embedded electronics

Patent metadata

Field	Value
Publication number	US-11478962-B2
Application number	US-201816618945-A
Country	US
Kind code	B2
Filing date	Jun 6, 2018
Priority date	Jun 6, 2017
Publication date	Oct 25, 2022
Grant date	Oct 25, 2022

Abstract

A method of manufacturing a medical component includes preparing a first sheet of an elastomeric material, arranging at least one electronic device in the first sheet of elastomeric material to obtain an elastomeric preform, and arranging the elastomeric preform in a mold and molding the elastomeric preform therein to cure the elastomeric material and form the medical component having the at least one electronic device embedded therein.

First claim

We claim:

1. A method of manufacturing a medical component, the method comprising:
preparing a first sheet of an elastomeric material;
arranging at least one electronic device in the first sheet of elastomeric material to obtain an elastomeric preform;
applying a protective film on a surface of the elastomeric preform, such that the protective film covers an exposed surface of the at least one electronic device;
aligning the elastomeric preform covered by the protective film in a mold such that the at least one electronic device is received within an open cavity defined by the mold; and
molding the elastomeric preform covered by the protective film to cure the elastomeric material and form the medical component having the at least one electronic device embedded therein.

2. The method of claim 1 , wherein the protective film comprises an electrical or optical path to the at least one electrical device such that the protective film provides a barrier property for encapsulation of the at least one electrical device.

3. The method of claim 2 , wherein the electrical or optical path is insulated by the protective film from a medicament.

4. The method of claim 2 , wherein the electrical or optical path comprises an electrical contact through the protective film, such that the electrical contact engages with the exposed surface of the at least one electrical device.

5. The method of claim 2 , wherein the protective film encapsulates the at least one electronic device, and the protective film is electrically conducive.

6. The method of claim 2 , wherein a surface of the protective film covers an entire second surface of the first sheet of the elastomeric material.

7. The method of claim 1 , wherein the protective film is a fluoropolymer film.

8. The method of claim 1 , wherein the mold includes an upper mold half and a lower mold half defining the open cavity, a bottom surface of the open cavity of the lower mold half being recessed so as to be spaced apart from the elastomeric preform, such that during the molding, the elastomeric material of the elastomeric preform flows into a space between the elastomeric preform and the bottom surface to encapsulate the at least one electronic device by the elastomeric material.

9. The method of claim 1 , wherein at least one of the mold or the elastomeric preform includes an element for facilitating positioning of the elastomeric preform and/or centering of the at least one electronic device during the molding.

10. The method of claim 1 , further comprising
at least partially freezing the elastomeric preform to form a partially frozen elastomeric preform;
preparing a second sheet of elastomeric material;
positioning the partially frozen elastomeric preform and the second sheet of elastomeric material in the mold, the mold having a lower half and an upper half, the first sheet being in direct contact with the lower half; and
applying heat and pressure to the partially frozen elastomeric preform and the second sheet of elastomeric material in the mold to form the medical component having the at least one electronic device embedded therein.

11. The method of claim 1 ,
wherein the first sheet of the elastomeric material is the form of a tube of an uncured or a partially cured elastomeric material, the tube having a first end, an opposing second end and a hollow interior extending between the first and second ends; and
wherein the at least one electronic device is arranged in the hollow interior to form the elastomeric preform.

12. The method of claim 11 , further comprising crimping the first end of the tube together and crimping the second end of the tube together prior to molding the elastomeric preform.

13. The method of claim 11 , further comprising inserting a plug into each of the first and second ends of the tube after arranging the at least one electronic device therein.

14. The method of claim 1 , wherein the protective film is a polymer or ceramic film.

Assignees

• West Pharmaceutical Services Inc

Inventors

• Drake Kerry
• Gruen Heike
• Laubach Jeffrey M
• Mcgarry Martin
• Krizan Jason
• Dowling Patrick
• Worman Joel

Classifications

• A61J1/1468

  Containers characterised by specific material properties · CPC title

• B29L2031/753

  Medical equipment; Accessories therefor (bloodbags, medical bags B29L2031/7148; artificial eyes B29L2011/0008) · CPC title

• B29K2027/12

  containing fluorine · CPC title

• B29C33/12

  with incorporated means for positioning inserts, e.g. labels {(positioning reinforcements B29C70/541)} · CPC title

• B29C43/18 Primary

  incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles {(B29C43/206 takes precedence)} · CPC title